Buying research peptides in Canada

Research peptides can be supplied in Canada for in vitro laboratory use, and they are not authorised for human or animal use. Health Canada regulates therapeutic products, and none of these compounds are approved therapeutic products. A supplier can sell them as research chemicals to a buyer acting in a research capacity, and the buyer is responsible for lawful possession, handling, and disposal.

Check that the supplier publishes a certificate of analysis tied to the specific lot you would receive. A purity figure on a product page is a marketing claim; a third-party assay naming a lot number is evidence. Also check where it ships from, because a domestic parcel avoids customs delay and border risk entirely.

Because purity varies between synthesis batches. A certificate that does not name a lot cannot be matched to the vial in your hand, so it tells you nothing verifiable about that vial. Lot-level traceability is the difference between documentation and decoration.

Lyophilised peptides do not need cold shipping. In freeze-dried form they are stable at ambient temperature for the length of a domestic transit, which is why reputable suppliers ship them dry rather than on ice. Cold storage matters after delivery, and once reconstituted into solution.

Store lyophilised vials at -20 C for long term holding, and keep them dry and out of light. After reconstitution the solution should be refrigerated, protected from light, and dated against its lot number, because a solution has a much shorter usable life than the powder did.

High performance liquid chromatography separates a sample into its components and reports what proportion is the target peptide. It tells you the sample is clean. It does not on its own confirm the sample is the compound you ordered, which is why identity needs mass spectrometry alongside it.

Because they are testing different batches, sometimes with different methods, and sometimes with different degrees of independence from the lab doing the testing. Compare the certificates, not the numbers on the product pages.

No. A parcel that starts and ends in Canada does not cross a border, so there is no customs step, no import assessment, and no seizure risk. Ordering from outside Canada introduces all three.

At minimum the lot number for what you received, and access to the third-party assay for that lot. Molecular weight and solubility figures are useful too, because your dilution arithmetic depends on them.

No certificates, or certificates with no lot numbers. Identical, implausibly high purity claims repeated across every product. Any language suggesting human use, dosing, or therapeutic benefit, which is both a compliance problem and a sign they are selling to the wrong audience.